table{
    width: 900px;
    background-color: #f0efee;
}
table .headaa{
    font-size: 20px;
    color:red;
}
table tr:hover{
    background-color: #7b7b7b;
}
table tr{
    height: 40px;
}
h1{
    text-align: center;
    font-family: 华文琥珀;
}
table{
    margin: 0 auto;
}
input{
    margin-left: 40px;

}




